Device for closing stove-doors.



'L. SGRUGGS.

DEVICE FOR CLOSING STOVE DOORS.

APPLIOATION FILED DEC. 30, 1911.

1,065,003, Patented June 17, 1913.

tnvia nn spars ea LOYD SCRUGGS, OF ST. LOUIS, MISSOURI, ASSIGNOR TOCOPPER GLAD MALLEABLE RANGE COMPANY, OF ST. LOUIS, MISSOURI, ACORPORATION OF NEBRASKA.

DEVICE FOR CLOSING STOVE-DOORS.

Application filed December 30, 1911.

To all whom it may concern Be it known that I, LOYD SCRUGGS, a citi- Zenof the United States, residing at St. Louis, Missouri, have invented acertain new and useful Improvement in Devices for Closing Stove-Doors,of which the following is a full, clear, and exact description, such aswill enable others skilled in the art to which it appertains to make anduse the same.

This invention relates to devices for closing stove doors.

One object of the invention is to provide a device of novel constructionfor closing the oven door of a stove which consists of a weight, andmeans for causing said weight to exert greater leverage or pressure onthe door when the door is closed than when the door is in its openposition.

Another object is to provide a compact oven door closing device in whichthe weight has a relatively short range of travel and is so arrangedthat it cannot strike against the grate or against the ash-deflectingguides under the grate.

Another object is to provide an oven door closing device comprising aweight and means for guiding the weight so that it cannot sway or movelaterally and thus strike against the side walls of the houslng orcompartment of the stove in which the weight travels. And still anotherO l3]0l3 is to provide an oven door closing devlce that is arrangedentirely within the stove, thereby overcoming the necessity of formingan opening in the bottom of the stove so as to form a clearance for theoven door weight when the oven door is in its closed position. Otherobjects and desirable features of my invention will be hereinafterpointed out.

Figure 1 of the drawings is a front elevational view of a stove providedwith an oven door closing device constructed in accordance with myinvention; Fig. 2 is a vertical sectional view taken on approximatelythe line 2-2 of Fig. 1 looking in the direction indicated by the arrows;Fig. 3 is a similar view showing the oven door in its open position;Fig. 4c is a horizontal sectional view taken on approximately the line44 of Fig. 2 looking in the direction indicated by the arrows; Fig. 5 isa horizontal sectional view illustrating a slight modification of myinvention; Fig. 6 is a perspective view illustrating one of thetrunnions of the Specification of Letters Patent.

Patented June 17,1913.

Serial No. 668,621.

oven door; and Fig. 6 is a perspective view illustrating the crank armthat is connected to said trunnion.

Referring to the drawings which illustrate the preferred form of myinvention, A designates the oven door of a stove which is provided atits lower edge with trunnions 1 and 2 that are journaled in boxes orbearings 3 that are fastened in any suitable manner to the front wall ofthe stove. A crank arm 4 is connected to the trunnion 2 in such a mannerthat it lies at approximately right angles to the oven door A when theoven door is in its closed position, as shown in Fig. 2, and a weight B,which is preferably of approximately cylindrical-shape, is pivotallyconnected to said crank arm for securely holding the oven door in itsclosed position. Instead of having the weight B carried entirely by thecrank arm 4, as has heretofore been the general practice, have providedmeans for guiding and supporting the opposite end or free end of theweight B, said means preferably consisting of a rod or projection 5 onthe rear end of the weight B that passes freely through an opening in astationary part of the stove, thus preventing the weight from swaying orswinging laterally when the oven door is closedor opened. I prefer toarrange a stationary bracket 6 inside of the compartment in which theweight B travels, which bracket is provided with an opening throughwhich the projection 5 on the weight passes freely, as shown in Figs. 2,3 and at, but, if desired, the rear wall 6 of the stove could be used tosupport and guide the rear end of the weight, as shown in Fig. 5, theprojection 5 on the weight merely passing through an opening in the rearwall (i of the stove.

The crank arm 4 can be connected to the oven door A in various ways butI prefer to provide the trunnion 2 with a substan tially wedge-shapedportion 2*, as shown in Fig. 6, that fits in a correspondingly-shapedsocket 4 in the crank arm 4, thus rigidly connecting the crank arm tothe oven door in such a manner that it cannot move relatively to thesame. The crank arm is merely driven or forced onto the trunnion 2 onthe oven door, and the box or bearing 3, which receives said trunnion,is provided with an end wall 3*, as shown in Fig. 4:, that laps over theend of the trunnion 2 and thus prevents the crank arm from movingendwise or working off the trunnion.

hen the oven door is in its closed position practically the entire forceof the weight B is exerted on the crank arm at so that there is nopossibility of the oven door dropping open. When the oven door is movedinto its open position, as shown in Fig. 8, the crank arm 4 swingsupwardly and thus lifts the front end of the weight B and draws saidweight forwardly, the crank arm being so proportioned that itlies atapproximately right angles to the weight when the oven door is in itsopen position so that practically no weight or force is exerted on theoven door in a direction tending to move the oven door into its closedposition. hen the oven door is moved into its closed position the crankarm t moves the front end of the weight downwardly and also forces theweight rearwardly, the projection 5 on the rear end of the weightsliding freely in the stationary bracket or support provided for same.

Any suitable form of weight may be used but I prefer to use a weightthat is relatively long and narrow and formed from metal that is castaround an iron bar that reinforces and strengthens the weight, theportion of said rod that projects from the rear end of the weightserving as the projection 5 which passes through the guiding bracket 6,and theportion of said rod which projects from the front end of theweight being provided with an eye through which a pin 7 passes thatconnects the front end of the weight to the crank arm 4.

An oven door closing device of the construction above-described is adecided im. provement on the oven door closing devices which haveheretofore been in general use because practically the entire force ofthe weight is exerted on the door when the door is in its closedposition, and practically no weight is exerted on said door when thedoor is in its open position. The device is compact, and as the weighthas a relatively small degree of movement there is no danger of itsstriking against the grate 8 or against the ash-deflectors 9 arrangedunder the grate when the door is opened and closed, the range of travelof the weight being so limited that it never passes above the grate orbelow the ash-deflectors under the grate. The fact that the weight isguided at both ends prevents the weight from swaying or swinginglaterally against the side walls of the compartment in which it travelsso that all possibility of the weight becoming ammed or being brokenaway from the oven door is eliminated. And another desirable feature ofsuch a construction is that the weight and the other parts of the doorclosing mechanism are completely incased in the stove and are sodesigned that it is not necessary to form an opening or slot in thebottom of the stove to form a clearance for the weight when the ovendoor is in its closed position. Such a structure is inexpensive tomanufacture and assemble, and the way in which it is designed reduces toa minimum the possibility of its getting out of order, either when thestove is in use or when it is in transit.

Having thus described my invention,what I claim as new and desire tosecure by Letters Patent is:

A stove provided with a grate, ash-defleeting guides arranged under thegrate, an oven door, an operating weight for the oven door arrangedintermediate said guides and grate, and means for guiding said weight sothat it never travels above the grate or below said guides or sways'fromside to side.

In testimony whereof I hereunto aflix my signature in the presence oftwo witnesses, this twenty second day of December 1911.

LOYD SCRUG-GS.

\Vitnesses ELLs L. GHUnorI, GEORGE BAKEWELL.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

